Hybrid tea rose plant named ‘RUIY5451’

ABSTRACT

A new and distinct hybrid tea rose plant having attractive large flowers.

Botanical classification: Rosa hybrida.

Varietal denomination: ‘RUIY5451’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct variety of roseplant of the hybrid tea rose class, which was created by crossing anundistributed, unpatented seedling as seed parent with the variety knownas ‘Pannaran’ as pollen parent (U.S. Plant Pat. No. 10,927). Thevarietal denomination of this new rose is named ‘RUIY5451’.

SUMMARY OF THE INVENTION

Among the novel characteristics possessed by this new variety whichdistinguishes it from its parents and all other varieties of which I amaware are its flower color.

Asexual reproduction by propagation by grafting and by vegetativecuttings of the new variety as performed in De Kwakel, The Netherlandsshows that the foregoing and other distinguishing characteristics cometrue to form and are established and transmitted through succeedingpropagation.

COMPARISON WITH PARENTS

The new variety differs from its parents in flower color, inasmuch asthe flowers of ‘RUIY5451’ are orange red and flowers of the seed parentare cream and light pink and flowers of the pollen parent are pink blendwith apricot tones.

BRIEF DESCRIPTION OF THE ILLUSTRATION

The accompanying illustration shows a typical specimen of the newvariety depicted in color as nearly true as is reasonably possible tomake the same in color illustrations of this character.

In the illustration, 1, 2, 3 and 4 show the foliage; 5 shows a stemportion; 6, 7, 8 and 9 show a bud and blooms at different stages ofdevelopment; and 10, 11 and 12 show the reproductive organs.

DESCRIPTION OF THE NEW VARIETY

The following is a detailed description of the new variety with colorterminology in accordance with The Royal Horticultural Society ColourChart (R.H.S.C.C.). The terminology used in color description hereinrefers to plate numbers in the aforementioned color chart. Phenotypicexpression may vary with light availability, environmental and culturalconditions.

The following observations are made of 9-month old plants grown in agreenhouse in De Kwakel, The Netherlands during January.

-   Flower:    -   -   Blooming habit.—Continuous.        -   Bud size.—Large, about 5-6 cm. long by about 4 cm. wide.        -   Form.—Ovate.        -   Color.—When sepals first divide, orange near 33A.        -   Sepals.—Just before opening sepals are as long as the bud;            color top surface near 146C to 146D; under surface near 146C            to 146D and sometimes in the middle a small part near 46B; 5            sepals per flower, some sepals with small extensions, upper            surface tomentum.        -   Peduncle.—Length: About 11 cm. Aspect: Smooth. Strength:            Erect, strong. Color: Near 138A.-   Bloom:    -   -   Size.—Average size when fully open is 14 cm.        -   Borne.—Singly.        -   Form.—High centered at first; becoming flat; petals            remaining at first loosely rolled outward, becoming ruffled            at maturity, petals reflexed before fully open.        -   Petalage.—Number of petals under normal conditions: About            25.        -   Color ( 1/3 to 1/2 open).—Outer petals Top surface: Near            40B. Under Surface: Near 42B. Inner Petals Top Surface: Near            40B. Under Surface: Near 42B to 42C. Base of Petals (Point            of attachment): Near 13A. General tonality from a distance:            Orange red.        -   Color (fully open).—Outer Petals Top Surface: Near 40B.            Undersurface: Near 42B. Inner petals: Top surface: Near 40B.            Undersurface: Near 42B. Base of Petals (Point of            attachment): Near 13A. General tonality from a distance:            Orange red. Color change as bloom ages.        -   Petal top surface.—Near 63B.        -   Petal under surface.—Near 63C to 63D.        -   General tonality from a distance.—Petal color becomes dull            pink.-   Petals:    -   -   Texture.—Smooth.        -   Appearance.—Inside and outside satiny; reflexing of margin            is strong.        -   Form.—Shell-shaped.        -   Arrangement.—Regularly arranged, imbricated.        -   Petaloids in center.—Few, about 4; same color as petals.        -   Persistence.—Petals drop off cleanly.        -   Fragrance.—No fragrance.        -   Lasting quality.—On the plant about 18 days; as cut flower,            vase life about 11 days.-   Reproductive organs:    -   -   Arrangement.—Stamens, regularly arranged around styles.        -   Color filaments.—Yellow orange.        -   Anthers.—Near 20A and 22A.        -   Pollen color.—Brownish yellow.        -   Styles.—Uneven length about 1 cm.        -   Stigmas color.—Cream about near 11B.        -   Hips shape.—Pitcher shaped.        -   Color (when mature).—Light orange with green.        -   Seeds.—Some seeds protrude.-   Plant:    -   -   Form.—Upright.        -   Growth.—Vigorous, uniform branching.        -   Height attained (first season).—About 200 cm.        -   Foliage.—Compound 3, 5 and 7 leaflet leaves.        -   Size.—Largest leaflets — length about 12-8 cm., width about            8-5 cm.        -   Quantity.—Usually about 14 leaves per stem.        -   Color.—New foliage Upper Side: Green near 139B with purple            to bronze tinges, near 183B. Under Side: Near 178A. Old            foliage Upper Side: Near 139A. Under Side: Near 137C.        -   Shape.—Elliptic.        -   Texture.—Upper Side: Weak to medium glossy. Under Side:            Matte, veins are clearly visible.        -   Edge.—Serrated.        -   Serration type.—Ordinary, acuminate pieces.        -   Petiole color.—Top Surface: In center near 138B; sides near            183B. Under Side: Near 138B.        -   Stipules.—Slightly bearded.        -   Length.—About 1 cm.        -   Width.—About 0.5 cm.        -   Color.—Near 138A to 138B.        -   Auricle length.—About 4 mm.        -   Width.—About 2 mm.        -   Color.—Near 139B.        -   Rachis surface.—Top is flat. Under Side: Rounded, with some            prickles.        -   Resistance to disease.—Susceptible to blackspot, mildew, and            rust.-   Wood:    -   -   New shoots.—Stem: About 10 cm.; green near 138B. Bark:            Rough, with many small prickles.        -   Old wood.—Color: Green. Bark: Smooth, green near 138A, with            thorns.        -   Flower stem.—Length from last cut (including peduncle):            Average about 80 cm.        -   Thorns.—About 6 thorns per internode.        -   On laterals from basal canes.—Many.        -   Form.—Curved downwardly.        -   Length.—Medium, about 1 cm.        -   Color (when young).—Brownish purple near 187B.        -   Color (when old).—Greyed orange near 177B.        -   Position.—Irregular.        -   Prickles.—Normal; same color as thorns.-   Winter hardiness: Not known.-   Uniqueness: Very large bud size, flower color; good production,    about 200 stems/m²/year.-   Observed plant: Grown in a 20 lt pot with a substrate of coco peat    in a greenhouse in De Kwakel, The Netherlands.    -   -   Time of year.—January.        -   Range or average day temperature.—18° C.        -   Range or average night temperature.—16° C.        -   Light level.—5000 Lux. Photoperiodic treatments — no.

1. A new and distinct hybrid tea rose plant of the variety substantially as shown and described. 